Port 6666 is the same with the sample that is delivered with crtmpserver (the flvplayback.lua sample).

Turn off pi camera led

#!/usr/bin/env python
import time
import RPi.GPIO as GPIO
# Use GPIO numbering
GPIO.setmode(GPIO.BCM)
# Set GPIO for camera LED
CAMLED = 5
# Set GPIO to output
GPIO.setup(CAMLED, GPIO.OUT, initial=False)
# Five iterations with half a second
# between on and off
#for i in range(5):
# GPIO.output(CAMLED,True) # On
# time.sleep(0.5)
# GPIO.output(CAMLED,False) # Off
# time.sleep(0.5)
GPIO.output(CAMLED,False) # Off